Fisch Fish Value & Mutation Calculator

Estimate the Merchant C$ value of any catch without double-counting Big or Giant. Enter the fish’s C$/kg, actual weight, one mutation, and any Shiny or Sparkling attributes.

✓ Formula and reviewed presets checked July 21, 2026

Calculate Fisch Fish Sell Value

The example starts with the wiki’s 5.7 kg Shiny Grey Carp numbers so you can verify the two rounding steps before entering your own catch.

C$ per kgUse the species value shown as C$/kg, not its average total price.Actual fish weight (kg)Enter the weight printed on the fish item.MutationUnmutated fishOptional cost already paidUse this for an appraisal or another cost you want to subtract.

Value-bearing attributesShiny1.85× and can stackSparkling1.85× and can stack

Estimated merchant sell valueC$1825.7 kg · 1.85× combined modifier

First round-upC$98ceil(17.14 × 5.7)

Modifier valueC$84Mutation and selected attributes

Effective C$/kgC$32Final estimate ÷ actual weight

After optional costC$182Sell estimate minus entered cost

Formula usedceil(ceil(C$/kg × weight) × mutation × attributes)

This estimates the Merchant C$ sell price. It does not estimate player-to-player trade demand, limited-item scarcity, or the probability of getting a mutation from appraisal.

The Fisch Value Formula

The order matters because Fisch rounds up once before modifiers and once after them.

STEP 1

Price per kg × weight

Multiply the species C$/kg value by the actual weight on the item, then round up to a whole C$. This is the unmodified base value.

STEP 2

Multiply modifiers

Apply one mutation plus Shiny and Sparkling when present. Value-bearing attributes stack multiplicatively, not additively.

STEP 3

Round up again

Round the modified result up to a whole C$ for the final merchant sell estimate. The calculator shows both round-up stages.

Common error: Big, Giant, Small, and Tiny are weight labels. Their effect is already captured by the actual kg value. Adding another size multiplier overstates the price.

Reviewed Mutation Multiplier Presets

This is a compact calculator list, not a claim to track every mutation. Choose Custom when your current mutation is not listed.

Mutation	Multiplier	Calculator note
Aether	12×	Current high-value reference
Olympian	10×	Olympian mutation
Tryhard	10×	Tryhard Rod mutation
Fabulous	9.6×	Fabulous Rod mutation
Darkness	9.4×	Limited mutation
Mastered	8×	Perfect-catch mutation
Sunken	6.3×	Current reviewed multiplier
Chaotic	6.2×	Chaotic enchant mutation
Nuclear	6×	Nuclear mutation
Mythical	5.5×	Appraisable mutation
Abyssal	5.5×	Appraisable mutation
Prismize	5.5×	Ethereal Prism mutation
Glitched	0×	Zero sell-value attribute

Why a custom field exists: Fisch changes quickly and has many limited, event, admin, and rod-exclusive mutations. A short reviewed preset list is safer than presenting an incomplete list as comprehensive.

Sell Value vs. Trade Value

Merchant C$ value

Formula-driven. Use this calculator when deciding whether a fish is worth selling or comparing the C$ effect of known modifiers.

Player trade value

Market-driven. Limited availability, demand, collector interest, event timing, and duplication risk can matter more than merchant C$.

Appraisal decision

A higher possible multiplier is not guaranteed profit. Appraisal can change weight or mutation, and the correct expected value also needs the current odds and fee.

Fisch Fish Value Calculator FAQ

How is Fisch fish sell value calculated?

First round C$ per kg multiplied by actual weight up to the next whole C$. Then multiply that rounded base value by the single mutation and any value-bearing attributes, and round up again.

Do Big and Giant multiply fish value again?

No. Big and Giant describe the fish's weight relative to its base weight. The heavier weight already increases value, so applying another size multiplier would double count it.

Do Shiny and Sparkling stack in Fisch?

Yes. They are separate value-bearing attributes, each currently worth 1.85×, and they can stack with each other and with one mutation.

Is merchant sell value the same as Fisch trade value?

No. Merchant sell value is a C$ calculation. Player trade value also depends on demand, availability, events, collectors, and current trading behavior.

Plan a value-focused rod upgrade Choose a matching enchant

Sources reviewed July 21, 2026: community Fisch Wiki fish-value formula and mutation and attribute data. See our source methodology. Game updates can change multipliers.